SU844978A1 - Apparatus for measuring wall thickness of hollow cylindrical part - Google Patents

Description

(54) DEVICE FOR MEASURING THE THICKNESS OF THE WALL THICKNESS OF CYLINDRICAL DETAIL EMPTEMBER

one

The invention relates to a measurement technique, in particular for measuring the wall thickness of hollow cylindrical parts.

A device for measuring the wall thickness of a hollow cylindrical part is known, comprising a base with a clamping unit, a bracket mounted on a base, a bracket with parallel rods mounted on a bracket rotatably around an axis parallel to the base, a base stop located on the rod located inside the measured part stand, located on the other rod, and the indicator mounted on the stand with the possibility of contact with the outer surface of the measured part 1.

A disadvantage of this device is the impossibility of measuring the wall thickness of the spherical part of the bottom of a hollow cylindrical part.

The aim of the invention is the expansion of the range of controlled parts.

This goal is achieved by the fact that the stand and the base stop are mounted to rotate around an axis parallel to the axis of rotation of the bracket, the device is equipped with a handle mounted on the bracket to be rotated around an axis parallel to the axis of rotation of the bracket, two legs, one of which is pivotally connected with a handle and stand, and the second with a handle and base stop.

FIG. 1 shows the proposed device, front view; on firm. 2 - the same, top view; in fig. 3 is a view A of FIG. one.

) 0 The device contains a base 1 with a guide 2 fixed on it, on which a clamping unit 3 is mounted for accommodating the measured part 4, a bracket 5 fixed on the base 1, a bracket 6 with parallel shanks 7-9 mounted on the bracket 5 with the possibility rotation around the axis 10, the base stop 11 located at the end of the rod 7 made in the form of a two-armed lever, one arm of which is in contact with the inner surface of the measured part 4,

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and having the ability to rotate around the axis 12, a post 13 located at the end of the rods 8 and 9, having the ability to rotate around the axis 14, an indicator 15 mounted on the rack 13 and contacting the measuring tip with the outer surface of the measured part 4. Axes 12 and 14 of the base stop 1.1 and the rack 13 are located on the same line. On the bracket 6, the handle 17 is rotatably mounted around the axis 16, having two arms 18 and 19, which are fixed on the axis 16 and removed along the axis from each other. Hour 13 and the second shoulder of the base stop 11 are connected to the shoulders 18 and 19 of the handle 17 with hinged stubs 20 and 21, which form a hinged parallelogram, providing simultaneous rotation of the rack 13 and the base stop 11 relative to their axes. To ensure constant contact between the surface of the measured part 4 and the base stop 11 between the bracket 6 and the bracket 5, an adjustable spring 22 is fixed. The wall thickness of the hollow cylindrical part with a spherical bottom is measured as follows. The measured part 4 is mounted on roller supports of the clamping unit 3, which is moved along the guides 2 in the direction of arrow B. In this case, the rod 7 is located inside the measured part of my part 4 and the base stop 11 in contact with its inner surface, and the rod 8 and 9 with the stand 13 are placed outside the part 4, and the indicator 15 with the measuring tip contacts the outer surface of the part. This measures the wall thickness of the cylindrical part of the part. To measure the wall thickness of the spherical bottom of the part, the handle 17 is moved in the direction of the arrow B, the drive in motion is a hinged parallelogram consisting of a system of levers and pull and providing simultaneous rotation of the base stop 11 and the stand 13 with the indicator 15 relative to their axes at an angle of 90 ° When measuring the wall thickness in the middle part of the spherical bottom, the preliminary force created by the spring 22 becomes zero, therefore at this point it is necessary to press the part against the stop I.

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Claims (2)

/ 7 If it is necessary to measure the wall thickness of the part in another section, it is turned on roller supports of the clamping unit. The measurement is made on the indicator 15, which is preliminarily adjusted to an end measure. The invention makes it possible to measure the wall thickness not only of the cylindrical surface of the part, but also of the spherical part of the bottom of the hollow part, expands the technological capabilities of the device, the invention The device for measuring the wall thickness of a hollow cylindrical part containing a base with a clamping unit, a bracket fixed on the base bracket with parallel rods mounted on a bracket that can be rotated around an axis parallel to the base, a base stop located on the rods e. placed inside the measured part, the stand located on the other rod, and the indicator mounted on the rack with the possibility of contact with the outer surface of the measured part, characterized in that, in order to expand the range of controlled parts, the stand and the base stop are rotatably mounted around an axis parallel to the axis of rotation of the bracket, the device is equipped with a handle mounted on the bracket with the possibility of rotation around an axis parallel to the axis of rotation of the bracket, two ways, one of which is articulated Nena the handle and the frame, and the second - the handle and the base abutment Sources of information received note in the examination 1. The automated and mechanized control means linear, angular, electrical, mechanical and other parameters of parts and products. Directory-reference book. 2. Publishing House of the Central Research Institute of Information, 1974, p. 66 (prototype).